Title :
A new method for the design of a quasi-optical mode converter with a special reflector
Author :
Yang, Shiwen ; Tan, Soon Hie ; Li, Hongfu
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
fDate :
7/1/2002 12:00:00 AM
Abstract :
This paper presents a new method for the design of a special reflector for quasi-optical mode converters, using the combination of vector diffraction theory and geometrical optics. The reflector is formed in a piecewise manner, according to a base reflector shape chosen previously. Each piece of reflector cell is adjusted separately. A numerical example is carried out for the quasioptical mode conversion of a circular waveguide TE52 mode at 35 GHz, and the calculated results show that the output Gaussian wave beam waist radius is only less than twice the wavelength
Keywords :
circular waveguides; electromagnetic wave diffraction; geometrical optics; piecewise linear techniques; waveguide components; 35 GHz; TE52 mode; circular waveguide; geometrical optics; output Gaussian wave beam; piecewise formation; quasi-optical mode converter; reflector cell; reflector shape; vector diffraction theory; waist radius; Design methodology; Geometrical optics; Gyrotrons; Optical design; Optical diffraction; Optical waveguide theory; Optical waveguides; Power engineering and energy; Shape; Wavelength conversion;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2002.800448
